This deliverable is a result of work package 4, which is dealing with topics related to digitalisation as enabling technology for monitoring and predictive maintenance as being addressed by the IM-SAFE project. Deliverable 4.2 is focusing on semantic integration of data sources being relevant in context of asset management, in particular covering IoT, BIM and GIS. It gives insights into latest developments in open standards for interoperability and describes possible implementation using W3C Linked Data/Semantic Web technology including further standardization work related to its use. Results of this work will be used in task 5.3 to draw recommendations for further standardization work related to digitalisation in monitoring and asset management.